Reuben brooks



din-ital totes @stent dimite.

Letters .Patent No. 99,754, dated February 15, 1870.

www- Q AIRfPISTOL.

Schedule referred to in these Letters Patent and making pari: of the same To all whom it n1 ay concern Be it known that I, REUBEN BROOKS, Jr., of Rockport, in the county of Essex, and State of Massachnsctts, have invented a new and improved Air-Pistol, designed as a toy for children; and I do hereby declare 'that the following is a full and exact description thereof', reference being had to the accompanying drawing A is the barrel of the pistchand is provided with a rib, B, and ring D, all of which may be cast in one piece, or otherwise attached.

The rib B may be of any suitable form to fit the palm of the hand,fand may be upon the outside or inside of the elastic bulb C.

The bulb O is of rubber or other elastic substance, and is attached to the barrel A in any suitable manner.

The projection D is intended for the forefinger, and may be of any suitable form.

In practice, the pistol is held firmly iu .the hand by the forefinger passing through the ring D and pressing the rib against the palm of the hand, while the renniining three ngersare at liberty to compress the' elastic bulb C.

I do not'claiin the combination of an elastic bulb with a tube or narrel, (as this has before been done, asA

in the case of Snow t Oo., patent No. 85,704,) but I do claim the combination of the rib B, elastic bulb C, and barrel A, substantially as described.

The bai-relA is provided with asma-ll bore, H, about one-eigbth of an inch in diameter, and a large bore, G, aboutone-fourth of an inch in diameter, theformer for the purpose of receiving the dart F, and the latter for peasvor other suitable projectiles; but it is found, if the bore is of equal dialnet-er throughout that the projectile will start from the pistolen the first puif of air caused by compressing the bulb C, unless it is retarded by somo means, and will consequently be thrown but a short distance, and with feeble force; but if the projectile can be retained in the pistol until the pressure of air in the bulb has reached its maximum, and then be suddenly released, it will be ,thrown with much greater' force to a considerable distance.

To accomplish this I contract the rear portion of the bore in a conical form, as shown at h' and y', s'o that the projectile maybe pressed into the contracted portion ofthe bore, and be retained by 'friction until the pressure of air caused by compressing the bulb G is sulicient to overcome the resistance caused by thefriction described, when the projectile will be suddenly and forcibly expelled, as before stated.

The cylindrical portion of the bore gives direction to the projectile, and allows the force of the expanding air to act for a longer time upon the dart.

I do not claim the use ot' bores of diitierent diameters, as G and H; but I do claim forming the rear portion of the bore ot' air-pistols in the form of the frustum of a cone, with its base joining the cylindrical portion of the bore, substantially as described.

Having thus described my invention,

What l claim, and desire to secure by Letters Patent, is

l. The combination of the barrel A, rib B, and bulb C, substantially as described and for the purpose set forth.

2. In combination with the cylindrical bore of the barrel of air-pistols, the conical chamber h g', substantially as described and for the purpose set forth.

REUBEN BROOKS, JR; Vitnesses:

Jos. MANNING, EBEN. BLATCHFORD. 

